The CAS number of calcium lignosulfonate is 8061-52-7. It is the Chemical Abstracts Service registry number for lignosulfonic acid, calcium salt. This page lists the identifiers buyers usually need for purchase orders, customs and safety documents.
Identity of calcium lignosulfonate
| Identifier | Value |
|---|---|
| Chemical name | Lignosulfonic acid, calcium salt |
| Common names | Calcium lignosulfonate, calcium lignosulphonate, calcium lignin sulfonate |
| CAS No. | 8061-52-7 |
| HS code (customs) | 3804.00 — residual lyes from the manufacture of wood pulp, including lignin sulphonates |
| Appearance (our grades) | Light yellow-brown to dark brown powder |
| Solubility | Soluble in water |
CAS numbers of related lignosulfonates
| Product | CAS No. |
|---|---|
| Sodium lignosulfonate | 8061-51-6 |
| Calcium lignosulfonate | 8061-52-7 |
| Ammonium lignosulfonate | 8061-53-8 |
| Magnesium lignosulfonate | 8061-54-9 |
| Potassium lignosulfonate | 37314-65-1 |
What the CAS number does and does not tell you
A CAS number identifies the substance, not a commercial grade. Calcium lignosulfonates from different producers and grades share CAS 8061-52-7 but differ in lignosulfonate content, sugar, insoluble matter and other properties. On a purchase order, name the grade code and its TDS revision as well, for example GAC-CaLS-1. Export documents are explained in calcium lignosulfonate HS code and export documents.
Specifications, TDS and MSDS for our grades are on the calcium lignosulfonate (CAS 8061-52-7) product page.
Frequently Asked Questions
What is the CAS number of calcium lignosulfonate?
CAS 8061-52-7 (lignosulfonic acid, calcium salt).
Is the CAS number of calcium and sodium lignosulfonate the same?
No. Sodium lignosulfonate is CAS 8061-51-6; calcium lignosulfonate is CAS 8061-52-7.
What HS code is used for calcium lignosulfonate?
HS 3804.00, which covers residual lyes from wood-pulp manufacture including lignin sulphonates. Confirm the national tariff line with your customs broker.
